Gearing.



E. FEIX.

' GEARING.

APPLICATION FILED FEB. 19, 1909.

Patented Mar. 15,1910.

2 SHEETS-SHEBT 1.

E. PRIX. GBARING. APPLICATION FILED FEB. 19, 1909.

Patented Mar. 15, 1910.

2 SHEETS-SHEET 2.

UNITE STATES TFT FFIQIE.

ERNST FEIX, OF BODENBACI-I, AUSTRIA-HUNGARY.

GEARING.

To all whom it may concern:

Be it known that I, ERNST FEIX, a subject of the Emperor ofAustria-Hungary, residing at Bodenbach, Bohemia, Austria- Hungary, haveinvented certain new and useful Improvements in Gearing, of which thefollowing is a specication.

In frame filter presses which are closed by means of screw-threadedspindles, there is the objection that whether a smaller or larger numberof frames are put into the main frame or bed, the closing screw spindlemust always have such a length that even the smallest number of framescan be compressed by means of the said spindle. Such a long spindle, hashowever, the drawback that when a large number of frames are put in, itprojects very far beyond the main frame or bed, thus taking up a greatdeal of space and interfering with the movements of persons in thevicinity. Another very serious objection is the tedious screwing andunscrewing of this long spindle, which takes up a great deal of time, sothat it is often necessary, in order to avoid the said work whichoccupies so much time, to insert special intermediate pieces such as thesocalled spindle extensions, which, however, is a very complicated,lengthy and is moreover, only an incomplete remedy.

The device to which this invention relates removes the above objectionswithout losing those advantageous properties which are inherent to ascrew spindle closing den vice.

The preferred form of the invention is illustrated in the accompanyingdrawings, in which- Figure 1 is a longitudinal section of a frame filterpress. Fig. 2 is a front elevation of the same. Fig. 3 is a Vdetail viewof a ring, hereinafter called the pressure ring, and Figs. 4, 5 and 6are detail views of the screw spindle nut.

As will be seen from the longitudinal section shown in Fig. l, the framefilter press arranged otherwise in well known manner, has a hollow screwspindle a within which is mounted in a longitudinally adjustable manner,the pressure rod proper. The said pressure rod is connected at its frontend to the movable pressure plate c which compresses the single filterframes in the bed, and which is adjustably mounted in the well knownmanner in the filter bed and to that end is supported on rollers d forwhich Specication of Letters Patent.

Application filed February 19, 1909.

Patented Mar. I5, 1910.

Serial No. 478,904.

the connecting rods of the filter' bed form tracks. The pressure rod bis provided throughout its length at certain intervals with any desirednumber of recesses c of equal size. `With the said recesses al steelring consisting' of two parts is able to engage, the sci-called pressurering (Fig. 3), the vinner bore of. which is equal to the diameter of thepressure rod ast the recessed points c and the outer diameter of whichis larger than the largest outer diameter of the pressure rod Z). If thepressure ring f is placed into any of the recesses and then a sleeveshaped cap g pushed loose over it on the pressure rod and screwed on thefront end of the screw spindle, then the screw spindle and the pressurerod will be firmly secured together, but in spite of that, the screwspindle, the pressure ring and the pressure rod will `be each separatelyrotatable about its axis. In that way, by means of any desired number ofrecesses c, the total length of the screw spindle and of the pressurerod can be increased or reduced to any desired extent from a certainminimum length to a certain maximum length, merely by unscrewing the capg, shifting the pressure rod and moving the pressure ring f into anotherrecess of the pressure rod.

The screw spindle nut (see also front elevation in Fig. 2) is formed asa two-part or split nut lock c' which can be opened and closed and whichis mounted on the crossbar of the filter bed. This nut c' shown indetail in Figs. h6, is of known kind and comprises two cheeks z" and iguided transversely of the spindle a, the pms u of said cheeks engagingwith the eccentrically disposed slots t of the disk a' which is looseupon the screw-mandrel a and is provided with a handle h. The disk 7l isguided by means of guide slots s centrally of the screw-man# drel a. Thearrows (Figs. 4 and 5) show the direction of movement of the handle 72,and cheeks i and i. The split nut can thus be easily opened and closedby means of the hand lever 7L. If the said split nut is opened, thescrew spindle, together' with all the parts connected to it, rests,owing to its own weight, on a toothed wheel le engaging with the threadsof the screw spindle the axis of the said wheel being supported in thecross bar of the filter bed and rotatable by means of a hand wheel Z. Bymeans of the said hand wheel Z, the screw spindle with the pressure rodp and the pressure plate c can be quickly and easily reciprocated in thefilter bed like a toothed rack, namely to the extent of the whole lengthof the screw spindle.

The operation is as followsz-After the total length of the screw spindleand the pressure rod has been adjusted as desired, by introducing thepressure ring into the corresponding recess, and after the filter frameshave been introduced into the filter bed, the nut z' is opened, and thewhole device, together with the pressure plate c, is pushed by means ofthe hand wheel Z against the introduced filter frames, until they areall firmly pressed together. The nut z' is then closed, and a fewrevolutions of the screw spindle atthe main hand wheel m are sufficientto compress the single lter frames to such an extent that they form atight joint. If itis desired to open the filter after use, the screwspindle a is first turned back a few revolutions, the nut z' is thenopened, and the whole device is pushed by means of the hand wheel Z backagain until there is enough room for conveniently removing the filterframes.

What I claim as my invention, and desire to secure by Letters Patentis 1. A mechanical movement comprising a hollow screw spindle, a rodhaving recesses at intervals therein, a split ring adapted to enter anyone of said recesses for adjusting said rod longitudinally, a capadapted to be screwed upon said spindle to inclose said split ring, andmeans coperating with the screw to move the latter longitudinally.

2. A mechanical movement comprising, a hollow screw spindle, a rodhaving recesses at intervals therein, a split ring adapted to enter anyone of said recesses for adjusting said rod longitudinally, a capadapted to be screwed upon said spindle to inclose said split ring and atwo part nut adapted to be closed upon said screw spindle.

3. A mechanical movement comprising, a hollow screw spindle. alongitudinally adjustable rod having recesses at intervals therein, asplit ring adapted to enter any one of said recesses for adjusting saidrod longitiulinally, a cap adapted to be screwed upon said screw spindleto inclose said split ring, a pinion in mesh with the screw thread onsaid spindle for moving the same longitudinally, means for rotating saidpinions by hand and a two part nut adapted to be closed upon said screwspindle.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LEOPOLD SCHMIND, ARTHUR SCHREINBURG.

